Christians necessarily believe we depend on God for everything-a prayerless Christian, then, is a contradiction in terms.
The rich brother needs to let the gospel humble him while the poor brother needs to let the gospel affirm him.
As long as we think we are not that bad, the idea of grace will never change us.
You are under-qualified for the job of God.
The sin under all other sins is a lack of joy in Christ.
Grace is to be let into a place that you don't have a right to be.